Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and is generated by Changie.

2.9.0 - 2024-01-31

Changed

• Sort weeds by line number and then by column. (#155)
• Show unit names in output. (#156)
• Significantly improve weeders performance when using type-class-roots = false. (#172)
• Use Glob to find .hie files. This can avoid an infinite loop with recursive symlinks. (#165)
• Build with lens-5.3. (#173)

Fixed

• Weeder now correctly reports TOML parse errors. (#161)

2.8.0 - 2024-01-31

Added

• Weeder now supports GHC 9.8. (#142)

2.7.0 - 2023-08-17

Added

• Weeder now supports type class instances. Type class instances can be marked as roots with the root-instances configuration option. (#126, #133, #136)
• Weeder now optionally detects uses of types, excluding type family instances. This can be enabled with the unused-types configuration option. (#132)
• Weeder's analysis now runs in parallel. This can almost halve execution time when given enough cores. Enabled by calling Weeder with -j X or -N. (#137)
• --write-default-config flag to write and read a default configuration, if no configuration file is found. (#133)

Changed

• All configuration options now have default values. This can be disabled with the --no-default-fields flag. (#133)
• Weeder will now use distinct exit codes for certain failures. See README.md for more details. (#134)

2.6.0 - 2023-07-07

Added

• Weeder now supports GHC 9.6.

Changed

• Weeder now uses TOML as a configuration format. Please see Weeder's README for more information on the configuration format.
• Weeder now sorts weeds in a single file by ascending line number

Fixed

• Weeder now internally adds declarations once. This shouldn't result in any user visible changes, but may improve performance.

[2.5.0][v2.5.0] - 2023-01-23

• Weeder has been upgraded to support GHC 9.4 (only). As this changes the format of .hie files accepted, this is a major version bump. Thanks to @tfausak!

2.4.1 - 2023-01-05

• Build with lens-5.2

2.4.0 - 2022-05-22

• Weeder has been upgraded to support GHC 9.2 (only). As this changes the format of .hie files accepted, this is a major version bump.

2.3.1 - 2022-05-21

This is the last release of weeder compatible with GHC 9.0.

• Weeder now analyzes top-level pattern bindings. For example, with the following input:

  module Dep (a, b) where
  
  xxx :: Int
  xxx = 3
  
  a, b :: Int
  (a, b) = (xxx, 1)
  

  ... weeder will determine that both a and b depend on xxx. While this is an over-approximation, it prevents weeder from reporting false positives. For more information, see #92.

• Corrected a typo in --help (#96).

• Shorten the help text for --require-hs-files (#97).

• Allow algebraic-graphs-0.6 (#95).

• Allow Dhall 1.41 (#99).

• Allow optparse-applicative-0.17 (#100).

2.3.0 - 2021-10-11

• Switch to GHC 9

2.2.0 - 2021-08-28

This will likely be the last Weeder release before GHC 9.

• Allow configuration of the HIE file extension using the --hie-extension command-line flag
• Add --require-hs-files switch. If supplied, this switch means Weeder will only consider .hie files where a corresponding .hs file can be found. (#50)
• Pattern synonyms are now considered (#79)
• Weeder's output format is now one-line-per-weed (#62)
• --hie-extension can be used to change the extension used for .hie files (#64)

2.1.3 - 2020-12-11

• Support dhall-1.35, dhall-1.36 and dhall-1.37.
• Support bytestring-0.11.

2.1.2 - 2020-09-09

• Correctly support optparse-applicative 0.16.0.0. While this was meant to be resolved 2.1.1, 2.1.1 only changed the version for the library and not the executable.

2.1.1 - 2020-09-09

• Support Dhall 1.34
• Support optparse-applicative 0.16.0.0

2.1.0 - 2020-06-30

• Support regex-tdfa ^>= 1.2 (#13)
• Handle mismatched hie file version explicitly (fixes #8). (#16)
• Implement --help and --version (#36)
• Make search directory configurable (#37)
• Support GHC 8.10

2.0.1 - 2020-03-15

• PR #7: Support optparse-applicative-0.15.1.0 and algebraic-graphs-0.5. Thanks to @robx for contribuiting this fix!

2.0.0 - 2020-03-15

• Weeder 2.0 is a ground up rewrite of Weeder using .hie files. It is now maintained by Ollie Charles (@ocharles on GitHub).

• Note:

  Issue numbers before this version reference to the original repository here:

  • https://github.com/ndmitchell/weeder

  Issue numbers after this version reference to the new repository here:

  • https://github.com/ocharles/weeder

1.0.8 - 2018-08-26

• #42, make paths case-insensitive on MacOS

1.0.7 - 2018-08-23

• Don't warn on base as it is used by Paths_ modules

• #42, make --verbose print out the version number

• #41, make the --help output clear you can pass a stack.yaml

1.0.6 - 2018-06-16

• Don't fail with an error if stack setup is necessary

• If you fail to find stack.yaml give a better error message

1.0.5 - 2018-05-05

• #39, provide weeder as a library

1.0.4 - 2018-05-02

• #38, make sure you parse bracketed version ranges properly

1.0.3 - 2018-03-04

• #35, support ^>= operator in Cabal

1.0.2 - 2018-03-01

• Add lower bounds for Yaml and Aeson

1.0.1 - 2018-02-23

• #34, support -any for version numbers

1.0 - 2018-01-22

• #30, bump the version number to 1.0

0.1.13 - 2018-01-17

• #32, find .hi files in more places

• #32, always disable color when running stack

0.1.12 - 2018-01-16

• Make available on Mac

0.1.11 - *2017-12-29

• #29, deal with case-insensitive FilePath on Windows

0.1.10 - 2017-12-28

• Make --verbose print out the directory when running commands

• Don't report semigroups as unused on any platforms

0.1.9 - 2017-12-07

• Don't report Win32/unix as unused on the alternate platform

0.1.8 - 2017-12-06

• Follow both branches for if/else containing dependencies/modules

0.1.7 - 2017-08-09

• #21, detect dependencies that are only required transitively

• #13, respect the STACK_YAML environment variable

• #20, add verbosity messages in a lot of places

• #15, tone down unused import if exporting a cross-package type

• #11, optimise execution speed (~3x faster)

0.1.6 - 2017-06-18

• #10, find files generated by alex/happy

0.1.5 - 2017-06-02

• If --yaml and no hints give no output

0.1.4 - 2017-05-27

• #9, allow --dist-dir to set the stack dist-dir

• Deal with operators including | in them

• Allow arrays of arrays of strings in the .weeder.yaml

0.1.3 - 2017-05-08

• #5, document how to install weeder

• #8, detect unused imports, even import Foo()

• #7, don't say modules with only instances are always redundant

• #6, don't give partial pattern matches when reading .weeder.yaml

0.1.2 - 2017-04-29

• #3, deal with space-separated hs-source-dirs

0.1.1 - 2017-04-29

• #2, use "stack query" rather than parsing stack.yaml

0.1 - 2017-04-28

• Initial version